Los cactus que habitan las zonas desérticas han desarrollado adaptaciones como la transformación de las hojas en espinas y la capacidad de acumular agua en sus tejidos. ¿A qué factores se deben estas adaptaciones?

A. Al tipo de relieve.

B. Sales minerales y tipo de rocas.

C. Salinidad del agua.

D. Condiciones de sequía y alta temperatura.​

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

Analyze how the water cycle affects a food web. now list 3 examples for each below using complete sentences, on how too much water would affect the same web? how about to little water?